John Gill Bible Commentary

And all flesh shall see the salvation of God. "By the salvation of God" is meant, the Messiah, the Lord Jesus Christ, the Saviour of God's appointing and sending; and who is the author of that salvation which God resolved on, contrived, and approved of; and is his ordinance for salvation, unto the ends of the earth, for all his elect; Luk 2:30 whom a great number among the Jews should, and did see, with their bodily eyes; and whom not only God's elect among them, but also all of them among the Gentiles, should behold with an eye of faith, for themselves, as their Saviour and Redeemer. It is matter of question, what passage is here referred to; whether Isa 40:5 or Isa 3:10 the latter comes nearest to the words, and the former stands closely connected with the expressions before cited; though it is usual with the New Testament writers, to join together passages, which stand in different places of the same prophet, and even which are in different books; Rom 9:33 compared with Isa 8:14 and Mat 21:5 compared with Isa 62:11 and that agreeably to the method used by Jewish writers (r). (r) Vid. Surenhus. Biblos Katallages, de modis Allegandi, &c. Thes. 7. p. 45, 46, 319.